Description
The Largest Aspen Gazebo: Purpose-Built for Swim Spas and Resort-Style Living
The Aspen 12×20 is the flagship of the Aspen collection. With enough interior floor space for a full-size swim spa, an 8-foot hot tub with complete lounge seating, or a combination entertainment room with sofa, coffee table, wide-screen TV, and sound system, this is an enclosed gazebo designed for homeowners who want to create a destination in their backyard. The warm terracotta walls and dark brown accents bring the Aspen’s signature West Coast style to the biggest canvas in the lineup.
If you own a swim spa — or are planning to buy one — the Aspen 12×20 is purpose-built for that use case. Multiple Westview customers have confirmed that this model is exactly what they needed for year-round swim spa use. One owner described the enclosure as perfect for protecting against rain and cold, adding that during a snowstorm they were thinking how glad they were to be inside rather than outside. That is the kind of real- world performance you are investing in.
Ultrawood Composite: Premium Terracotta, Zero Maintenance
The Aspen 12×20 is constructed from Ultrawood, a heavy-duty composite material that replicates the warmth, grain, and texture of natural wood while requiring absolutely no maintenance. No staining, no sealing, no sanding, no replacing rotted boards — ever. One customer compared the Ultrawood to Trex composite decking and noted that it will last a lifetime. The terracotta color is engineered into the material itself, which means it does not fade, peel, chip, or require touch-ups over time.
The Aspen’s signature rounded corners panels give the 12×20 a distinctive silhouette and allow natural light to enter from additional angles. Combined with the dark brown window and door trim, the overall appearance is warm, refined, and unmistakably premium. Several owners have told us the Aspen 12×20 looks better than anything else they found — including steel buildings, custom-built mini houses, and covered deck additions they had considered.
Duraflex Roof and Bonus Sliding Doors
The Duraflex PC roof is rated at up to 35 lbs. per square foot of snow load, capacity. or 40 lbs. with the bracket upgrade. — critical at this larger roof span. A centered skylight provides natural daylight and a view of the night sky. Six sliding lockable windows give you full ventilation and insulation control year-round.
The Aspen 12×20 also includes a feature exclusive to the largest Westview models: a bonus set of aluminum sliding doors, in addition to the standard set of two lockable swing French doors. This gives you two separate entry and exit points, which is especially practical for swim spa owners who want one entrance near the spa and another near a seating or changing area. All doors lock securely for full security and hot tub privacy when the space is not in use.
Foundation, Permits, and Practical Planning
A structure this size requires a properly prepared foundation — If being used for a swim spa or hot tub, a reinforced concrete pad is recommended for supporting the combined weight of the gazebo and a water-filled swim spa or hot tub. Westview’s engineering stamp document is available for customers who need documentation for permit applications or HOA approvals. One customer noted that the entire assembly took about two days.
The Aspen 12×20 ships as a pre-assembled panel kit in a large steel-framed crate. Two to three people and a full weekend are recommended for assembly. Detailed instructions and unlimited phone support at 1-800-895- 1972 are included with every order.
Upgrades and Financing
Optional screen kits for insect-free ventilation, tempered glass for enhanced insulation and safety, and bracket reinforcements for extreme weather regions are available individually or as discounted bundles. Affirm financing is available at checkout. To discuss whether the Aspen 12×20 is the right size for your swim spa or backyard project, call the Westview team at 1-800-895-1972.
Great customer service. Even when there was a problem with paperwork the employees continued helping us and fixed the issue. A very patient, quick, easy and painless process.
So surprised how perfectly the gazebo assembled. Every hole aligned, no missing pieces, excellent instructions. It does take a long time to assemble (12 hours for 3 pretty capable people with 2 ladders). Assembly is easy, just a lot of pieces and screws. Very pleased with the quality of the materials and the sound design.
I bought this in 2019, but didn’t have time to set it up. After some family medical issues I finally got the time to assemble this. With the help of 2 others. Went together easily if directions are followed I have to say it is quite solid and should last for many, many years.
We purchased this Gazebo last June. Words cannot fully explain how the addition of this gazebo has altered the experience on our backyard patio! To begin with it creates and incredible welcoming, comforting and relaxing experience. Many of our neighbors and friends have commented about the welcoming and cosey feeling the gazebo provides during many of our social gatherings! It is also aesthetically very pleasing and greatly enhances the appearance of our patio giving it and our backyard a very classy look. Since adding this gazebo, we spend far more time outdoors enjoying the relaxing ambiance it provides! This was a great purchase for our family!
This Gazebo may be the best investment I have ever made. My wife and I erected it in less than 2 days. Everything fit together perfectly, we were so impressed by the quality and workmanship that went into this product and the people at Westview are top notch when I had a question, a special thanks to Brent, what a great guy. Our hot tub and Sauna are out of the elements in this fantastic shelter, our backyard never looked better. Can’t wait to set in the hot tub and watch it snow through the awesome skylight this winter. Great product and great company, thanks so much Westview manufacturing
This spa enclosure is exactly what we were looking for to enable us to use our swim spa year round. It is perfect to protect us from the rain and cold. Last week we had a snow storm and i was thinking…”dang I am happy to be in here and not outside”. Thanks.
The Aspen 12×20 is exactly what we needed for our swim spa. Protection from the elements to give us year round use of our swim spa. This building is well built with solid aluminium doors and windows.
Regarding the Aspen 12×20 gazebo….Once we built the base to make it tall enough for our swim spa it only took a couple of days to assemble. Everyone that sees it can’t believe how good it looks. Much better than anything else we found.
We looked at many different options, including steel buildings, having someone build a mini house for us, open air pergola, covered deck addition and big box store ‘gazebos’. We were pleasantly surprised when we found your website. We chose the Aspen gazebo and it was delivered in just over a week. I find it to very well built, with composite materials like Trex decking. This will last a lifetime, I’m sure. Was pretty easy to put together with great detailed instructions. We did have an issue with 2 missing bolts, which you couriered to us overnight, so I can’t complain. My wife got some furniture for the inside, and she decorated inside, and it looks terrific. I love the rear window frames, love the swing out doors. There is so much light inside with all the windows and the skylight. We were a little worried that it would be too dark and feel claustrophobic inside, but it’s great! Very impressed, if you ever need a testimonial or review, you only have to ask, I would be happy to oblige. My neighbors will probably be calling you soon for their very own unit. I will send you photos of the finished gazebo shortly. Ps. I appreciate the tip about building the concrete pad bigger than necessary, it looks much better this way with the open area outside the front entrance. It looks as part of our back yard as opposed to an addition.
Westview is a good company to deal with. We like the Aspen gazebo and recommend it.
Better quality than we could ever imagine. Everyone who sees it are amazed. So beautiful. Stays unbelievably warm when the sun shines. One of our neighbors saw all the parts and thought we could never put it together. They were astonished. Just after 8 hours. So beautiful. Love our Gazebo. Thanks to James and Andrew for all you support. Best regards, Donna Kin.
We’ve owned our Aspen 12×20 for a year now and it still looks brand new. No fading, no warping.
The delivery was smooth and all parts were clearly labeled. Took my 13 year old and myself Saturday and part of Sunday to assemble the Aspen 12×20.
Perfect spot for our hot tub. No more dealing with snow or rain while soaking.
We added a small electric fireplace and now it’s cozy even in the winter.
Beautiful product. The Aspen 12×20 Gazebo instantly elevated our backyard design.
Love how customizable it is. Screens, windows, and optional upgrades really make it versatile.
The structure feels incredibly secure. Even during high winds there’s no movement and very little noise.
Our family spends more time outdoors now than ever before. Best purchase we’ve made in years.
We get nonstop compliments from friends about our Aspen 12×20. It looks like something from a luxury resort.
Love all the windows and skylight! They let in tons of light without losing privacy.